GCONPRI

Recognised by the OPM Flow parserSCHEDULE

The GCONPRI keyword defines production targets and constraints for groups, including the top most group in the group hierarchy known as the FIELD group, for when groups and their associated wells are operating under priority control as opposed to guide rate control. Priority control is activated by the PRIORITY keyword in the SCHEDULE section. Wells are allocated to groups when the wells are specified by the WELSPECS keyword in the SCHEDULE section. Wells defined to be under group control will have their production rates controlled by the group to which they belong, in addition to any well constraints defined for the wells.

This keyword is not supported by OPM Flow but would change the results if supported so the simulation will be stopped.

Notes:

User Defined Quantities ("UDQ") can be used as User Defined Arguments ("UDA") for various group, well, and connection keywords in the SCHEDULE section. User Defined Arguments are activated using the UDADIMS keyword in the RUNSPEC section, and defined by the UDQ keyword in the SCHEDULE section.

The keyword is followed by any number of records with each record terminated by a “/” and the keyword should be terminated by a “/”.

See also the GRUPTREE keyword to define the hierarchy of the groups below the FIELD level, the GCONPROD keyword to define a group’s production targets and constraints, the GCONINJE keyword to define a group’s injection targets and constraints, the WCONPROD keyword to define a production well’s targets and constraints, and the WCONINJE keyword to define an injection well’s targets and constraints. All the aforementioned keywords are described in the SCHEDULE section.

Records

One or more records, each terminated by /

Items per record

17

Parameters

Example

The following example defines the production targets and constraints for the field and two groups that are one level below the field group, since the GRUPTREE keyword has not been entered to define the group hierarchy.
--
-- GROUP PRIORITY PRODUCTION CONTROLS
--
-- GRUP ORAT ORAT WRAT WRAT GRAT GRAT LRAT LRAT RVOL RVOL
-- NAME LIMT ACTN LIMT ACTN LIMT ACTN LIMT ACTN LIMT ACTN
GCONPRI
FIELD 40E3 PRI 30E3 +CON 125E3 PRI 1* 1* 1* 1* /
GRP01 25E3 PRI 1* 1* 1* 1* 1* 1* 1* 1* /
GRP02 25E3 PRI 1* 1* 1* 1* 1* 1* 1* 1* /
/
All groups are controlled by oil constraints, but only the field level has water and gas constraints to reflect the actual production facility constraints. The oil production constraint of 40,000, 25,000 and 25,000 stb/d are defined for the field, GRP01 and GRP02 groups, respectively. If the oil rate constraint is exceeded then the wells will be controlled using the priority formulae one, as defined on the PRIORITY keyword in the SCHEDULE section. Similarly for the field, for when the gas constraint is exceeded. Finally, if the field water constraint is surpassed then the worst offending connection and below in the worst offending well are shut.

Manual source: parts/chapters/subsections/12.3/GCONPRI.fodt